High Quality Content by WIKIPEDIA articles! Sochaczew County (Polish: powiat sochaczewski) is a unit of territorial administration and local government (powiat) in Masovian Voivodeship, east-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998. Its administrative seat and only town is Sochaczew, which lies 52 kilometres (32 mi) west of Warsaw.